feat(tenpayv3): 新增个人收款二手交易场景根据业务申请单号查签约信息接口

src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/Ecommerce/IndividualContracts/GetEcommerceIndividualContractByOutContractCodeRequest.cs

@@ -0,0 +1,22 @@
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /ecommerce/individual-contracts/out-contract-code/{out_contract_code} 接口的请求。</para>
+    /// </summary>
+    public class GetEcommerceIndividualContractByOutContractCodeRequest : WechatTenpayRequest
+    {
+        /// <summary>
+        /// 获取或设置微信 AppId。
+        /// </summary>
+        [Newtonsoft.Json.JsonIgnore]
+        [System.Text.Json.Serialization.JsonIgnore]
+        public string AppId { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 获取或设置业务申请单号。
+        /// </summary>
+        [Newtonsoft.Json.JsonIgnore]
+        [System.Text.Json.Serialization.JsonIgnore]
+        public string OutContractCode { get; set; } = string.Empty;
+    }
+}

src/SKIT.FlurlHttpClient.Wechat.TenpayV3/Models/_Partner/Ecommerce/IndividualContracts/GetEcommerceIndividualContractByOutContractCodeResponse.cs

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+using System;
+
+namespace SKIT.FlurlHttpClient.Wechat.TenpayV3.Models
+{
+    /// <summary>
+    /// <para>表示 [GET] /ecommerce/individual-contracts/out-contract-code/{out_contract_code} 接口的响应。</para>
+    /// </summary>
+    public class GetEcommerceIndividualContractByOutContractCodeResponse : WechatTenpayResponse
+    {
+        /// <summary>
+        /// 获取或设置签约时间。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("signed_time")]
+        [Newtonsoft.Json.JsonConverter(typeof(Newtonsoft.Json.Converters.Common.Rfc3339DateTimeOffsetConverter))]
+        [System.Text.Json.Serialization.JsonPropertyName("signed_time")]
+        [System.Text.Json.Serialization.JsonConverter(typeof(System.Text.Json.Serialization.Common.Rfc3339DateTimeOffsetConverter))]
+        public DateTimeOffset SignTime { get; set; }
+
+        /// <summary>
+        /// 获取或设置授权状态。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("auth_state")]
+        [System.Text.Json.Serialization.JsonPropertyName("auth_state")]
+        public string AuthState { get; set; } = default!;
+
+        /// <summary>
+        /// 获取或设置个人收款方受理授权 ID。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("individual_auth_id")]
+        [System.Text.Json.Serialization.JsonPropertyName("individual_auth_id")]
+        public string? IndividualAuthId { get; set; }
+
+        /// <summary>
+        /// 获取或设置个人收款方用户的 OpenId。
+        /// </summary>
+        [Newtonsoft.Json.JsonProperty("individual_openid")]
+        [System.Text.Json.Serialization.JsonPropertyName("individual_openid")]
+        public string? IndividualOpenId { get; set; }
+    }
+}